event to sample publisher
event to sample publisher

Bracket events like compute.instance.create.latency created from BP:
Transformers for events pipeline
https://blueprints.launchpad.net/ceilometer/+spec/events-pipeline-transformers
need to be published and stored as sample.

This spec will add a new notifier publisher that will convert bracket
event to notification, and send the notification back to ceilometer
notification listener, then sample pipeline will convert it to sample.

DocImpact

blueprint event-to-sample-publisher

Change-Id: Ifaab99642eb24fe6a6c056f4093f04705d578518

openstack/telemetry-specs,openstack/ceilometer-specs